Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60fbc106749b2d9216d7ab75eaf5c1a131755835c4bc738349e3625e32c80631' 
  AND token = 'KGraX/vRlaZDh4oM/vUpBULy6RG1pokJJ36AeRll4A4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}